Display screen portion with an icon



The FIGURE is a front view of a display screen portion with an icon showing the new design. The broken line features of the FIGURE, such as the depicted facial features and clothing, are for the purpose of showing features that form no part of this claimed design.

The perimeters of the portion of the underlying portion of a display screen and the graphical user interface are understood to be flush. 

CLAIM The ornamental design for an display screen portion with an icon, as shown and described. 